diff options
Diffstat (limited to 'src/devices/oprom/realmode/x86.c')
| -rw-r--r-- | src/devices/oprom/realmode/x86.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/devices/oprom/realmode/x86.c b/src/devices/oprom/realmode/x86.c index 32d24ec1c3..2e016176f9 100644 --- a/src/devices/oprom/realmode/x86.c +++ b/src/devices/oprom/realmode/x86.c @@ -402,7 +402,7 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber, u32 ip; u32 cs; u32 flags; - int ret = -1; + int ret = 0; struct eregs reg_info; ip = cs_ip & 0xffff; @@ -455,15 +455,17 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber, *(volatile u32 *)&edi = reg_info.edi; flags = reg_info.eflags; - /* Pass errors back to our caller via the CARRY flag */ + /* Pass success or error back to our caller via the CARRY flag */ if (ret) { + flags &= ~1; // no error: clear carry + }else{ printk(BIOS_DEBUG,"int%02x call returned error.\n", intnumber); flags |= 1; // error: set carry - }else{ - flags &= ~1; // no error: clear carry } *(volatile u16 *)&stackflags = flags; + /* The assembler code doesn't actually care for the return value, + * but keep it around so its expectations are met */ return ret; } |